SCD30 CO₂, Temperature and Relative Humidity Sensor¶
The scd30
sensor platform allows you to use your Sensirion SCD30 CO₂
(datasheet) sensors with ESPHome.
The I²C Bus is required to be set up in your configuration for this sensor to work.
![../../_images/scd30.jpg](../../_images/scd30.jpg)
# Example configuration entry
sensor:
- platform: scd30
co2:
name: "Workshop CO2"
accuracy_decimals: 1
temperature:
name: "Workshop Temperature"
accuracy_decimals: 2
humidity:
name: "Workshop Humidity"
accuracy_decimals: 1
temperature_offset: 1.5 °C
address: 0x61
update_interval: 5s
Configuration variables:¶
co2 (Optional): The information for the CO₂ sensor.
All options from Sensor.
temperature (Optional): The information for the Temperature sensor.
All options from Sensor.
humidity (Optional): The information for the Humidity sensor.
All options from Sensor.
temperature_offset (Optional, float): Temperature and humidity offsets may occur when operating the sensor in end-customer devices. This variable allows the compensation of those effects by setting a temperature offset.
automatic_self_calibration (Optional, boolean): Whether to enable automatic self calibration (ASC). Defaults to
true
.ambient_pressure_compensation (Optional, int): Enable compensation of measured CO₂ values based on given ambient pressure in mBar.
altitude_compensation (Optional, int): Enable compensating deviations due to current altitude (in metres). Notice: setting altitude_compensation is ignored if ambient_pressure_compensation is set.
address (Optional, int): Manually specify the I²C address of the sensor. Defaults to
0x61
.update_interval (Optional, Time): The interval to check the sensor. Defaults to
60s
.
Manual calibration:¶
# Example on how to implement a UI section in HA for manual calibration.
# Note: Please enter first a CO2 value before pressing the button.
button:
- platform: template
name: "SCD30 Force manual calibration"
entity_category: "config"
on_press:
then:
- scd30.force_recalibration_with_reference:
value: !lambda 'return id(co2_cal).state;'
number:
- platform: template
name: "CO2 calibration value"
optimistic: true
min_value: 350
max_value: 4500
step: 1
id: co2_cal
icon: "mdi:molecule-co2"
entity_category: "config"